The verb 判定 (pàndìng) means to judge, determine, or rule on something, especially in a legal or official context. It implies a formal decision or verdict has been reached. For example, 判定他有罪 means "ruled him guilty."
法院判定被告无罪。
Fǎyuàn pàndìng bèigào wúzuì.
The court found the defendant not guilty.
裁判判定这个球出界了。
Cáipàn pàndìng zhège qiú chūjiè le.
The referee ruled that the ball was out of bounds.
专家组判定这批产品不合格。
Zhuānjiā zǔ pàndìng zhè pī chǎnpǐn bù hégé.
The expert panel determined that this batch of products was substandard.